Sea Dragon Canvas Painting

Ok it's about time I uploaded this, I made it last year in May, almost a full year ago. It was my first ever canvas painting and I made it while I was on holiday within 2.5 hours.

My family and I were staying at a B&B in Cornwall, one afternoon I was left by myself while my parents attended a friend's wedding at a church.
I had brought my paints and canvas and began drawing the first thing that came to my head, which was this sea dragon here. Then I redrew it onto the canvas and started to paint it with watercolour and acrylic. About an hour into the painting I gave up, thought I'd wasted my canvas, put everything away and sat back sulking and listening to music. It was very frustrating.. then 15 minutes later, I was bored again, so I thought "Well I may as well try to complete it."
So after about 2 and a half hours, here was the result. My parents love this thing and want to frame it because it goes well with the house. I wanted to sell it but they wouldn't let me XD
I aim to improve because I'm not that happy with the result. But not bad for probably my second serious painting ever (first being Moltres in my gallery).
I wasn't going to bother uploading this but people have given good feedback so I thought I should go for it. Hope everyone likes!